The Visual Studio 2017 Icon (left) and the New Visual Studio 2019 Icon (right) (source: Microsoft). "The current icon's flat style rendered it almost invisible against a background with a similar ...

Microsoft has highlighted the UI changes coming to Visual Studio 2022, including new iconography, fonts, improvement to dark theme, color contrast adjustments, accent color modifications, and more.

This should fix the icon issue with your copy of Visual Studio Code. If you still have issues, doubts, and alternate solutions, please let me know in the comments section.